Injector



FIG. 1 is a perspective view of an injector in accordance with the present design, illustrating the plunger portion in a drawn back position;

FIG. 2 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front side elevational view thereof; and,

FIG. 6 is a rear side elevational view thereof.

The broken lines shown in the drawings illustrate portions of the injector that form no part of the claimed design. 

CLAIM The ornamental design for an injector, as shown and described. 